116180-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116180-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,1,8 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 116180-23:
(8*1)+(7*1)+(6*6)+(5*1)+(4*8)+(3*0)+(2*2)+(1*3)=95
95 % 10 = 5
So 116180-23-5 is a valid CAS Registry Number.
116180-23-5Relevant articles and documents
SYNTHESIS OF 1-OXA ANALOGUES OF NATURALLY OCCURRING CEPHALOSPORINS AND CEPHAMYCINS
Sendo, Yuji,Konoike, Toshiro,Murakami, Masayuki,Yoshioka, Mitsuru
, p. 599 - 603 (2007/10/02)
The title compounds 15a-c and 16a-c were synthesized from a 3-exomethylene-1-oxacepham compound 4.Its chlorohydroxylation provided a key intermediate 5e in synthesis of the 3'-oxygen-functionalized 1-oxacephems.